Move ExtensionUninstallDialog into extensions namespace

chrome/browser/ui/webui/ntp/app_launcher_handler.cc

Index: chrome/browser/ui/webui/ntp/app_launcher_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
index 8dac8c27b7153670dfe39c4f700e01d78b92a810..be4df3b0878e079b6dc6f8fad687cb5767b69e62 100644
--- a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
+++ b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
@@ -834,13 +834,14 @@ void AppLauncherHandler::ExtensionEnableFlowAborted(bool user_initiated) {
   CleanupAfterUninstall();
 }
 
-ExtensionUninstallDialog* AppLauncherHandler::GetExtensionUninstallDialog() {
+extensions::ExtensionUninstallDialog*
+AppLauncherHandler::GetExtensionUninstallDialog() {
   if (!extension_uninstall_dialog_.get()) {
     Browser* browser = chrome::FindBrowserWithWebContents(
         web_ui()->GetWebContents());
     extension_uninstall_dialog_.reset(
-        ExtensionUninstallDialog::Create(extension_service_->profile(),
-                                         browser, this));
+        extensions::ExtensionUninstallDialog::Create(
+            extension_service_->profile(), browser, this));
   }
   return extension_uninstall_dialog_.get();
 }